CN110000929A - A kind of super high power extra high voltage system - Google Patents
A kind of super high power extra high voltage system Download PDFInfo
- Publication number
- CN110000929A CN110000929A CN201910349308.XA CN201910349308A CN110000929A CN 110000929 A CN110000929 A CN 110000929A CN 201910349308 A CN201910349308 A CN 201910349308A CN 110000929 A CN110000929 A CN 110000929A
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- pressure
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- water outlet
- motor
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 27
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 210000000988 bone and bone Anatomy 0.000 claims description 6
- 238000011897 real-time detection Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
Abstract
A kind of super high power extra high voltage system, it includes pedestal (21), water tank (22) are installed on pedestal (21), water pump (23) and control electric cabinet (24), the water inlet of water pump is connected with the water outlet of water tank, it is characterized in that the water outlet point multichannel of the water pump (23) is connected with the water inlet for each high-pressure pump (25) being mounted on pedestal (21), high-pressure pump (25) is driven by respective motor (26), the water outlet of each high-pressure pump (25) is sent into water outlet switching (28) by high-voltage tube (27), water outlet switching (28) is connected by pressure duct with the high pressure water water inlet interface (10) of ultra-high pressure high flow rotary joint again.General power of the invention reaches 640kW;Maximum pressure reaches 300MPa, has a set pressure, and the pressure respectively pumped in group follows automatically;And have continuous adaptive pressure stabilizing control function, making system, a key is set up at work, the operation is stable;There are overvoltage protection, undervoltage warning, the safety protection functions such as unstability automatic shutdown protection in super-pressure pump system.
Description
Technical field
The present invention relates to a kind of water-jet technology, especially a kind of large-scale water jet system, specifically a kind of super large
Power extra high voltage system.
Background technique
Extra high voltage system is the important component of high-pressure water cutting machine, and effect is that continuous pressure is provided for cutting machine
The stable high pressure water of power.It is current to be shown both at home and abroad there are no the extra high voltage system product of super high power according to the data inquired,
The maximum power of extra high voltage system is 200kW at present.And in some specific applications (such as mining, broken rock, stone mining),
There is an urgent need to the extra high voltage systems of super high power, shorten engineering construction period needs to meet.Super high power extra high voltage system fortune
For carrying out fly-cutting to rock using the impact kinetic energy of jet stream and being crushed, broken with traditional in big flow Water jet equipment
Rock method is compared, and is carried out using high-speed jet to rock broken not only high-efficient, and can be delayed the abrasion of cutter, be reduced more tool changing
The downtime of tool guarantees the continuity of broken rock construction.The development of super high power extra high voltage system makes China in the dress in the field
Standby level reaches leading in the world.
Summary of the invention
The purpose of the present invention is the power for existing high-pressure water diced system to be unable to satisfy mining, broken rock, stone material
The fields such as exploitation, to affect the problem of it is applied in these areas, designing a kind of maximum power can reach 640 kW, most
High pressure reaches the super high power extra high voltage system of 300MPa or more.
The technical scheme is that
A kind of super high power extra high voltage system, it includes pedestal 21, and water tank 22, water pump 23 and control electric cabinet are equipped on pedestal 21
24, the water inlet of water pump is connected with the water outlet of water tank, it is characterized in that the water outlet point multichannel of the water pump 23 be mounted on
The water inlet of each high-pressure pump 25 on pedestal 21 is connected, and high-pressure pump 25 is driven by respective motor 26, and each high-pressure pump 25 goes out
Water end (W.E.) is sent into water outlet switching 28 by high-voltage tube 27, and water outlet switching 28 is connect by pressure duct and ultra-high pressure high flow rotation again
The high pressure water water inlet interface 10 of head is connected.
The quantity of the high-pressure pump 25 is four, general power 640kW, and maximum pressure reaches 300MPa, and output pressure
Adjustable, the pressure of each high-pressure pump follows automatically.
The water outlet of the high-pressure pump 25 is equipped with shut-off valve 29, and before electric motor starting, shut-off valve is in the open state,
The output water of high-pressure pump is discharged through shut-off valve, and when guaranteeing motor light-load starting, run well after electric motor starting, shut-off valve is closed
It closes, into pressurization output state.
In each motor 26, at least one motor is connected with frequency converter, the high-pressure pump 25 being connected with the motor
Water outlet is connected with pressure transmitter 30, and the revolving speed of motor is adjustable under the control of frequency converter, by adjusting the revolving speed of motor
To achieve the purpose that adjust flow system flow, pressure;Pressure of the pressure transmitter for real-time detection high-pressure pump output water;Pressure
The connected applications of transmitter and frequency converter realize the control to system pressure: when the pressure of high-pressure system is lower than setting value, becoming
Frequency device, which controls motor speed, to be accelerated;When the pressure of high-pressure system is higher than setting value, Frequency Converter Control motor speed slows down, thus
Realize the control to high-pressure system output water pressure.
Each motor 26 is controlled by respective motor controlling cabinet 31.
The ultra-high pressure high flow rotary joint includes mounting base 8 and connecting plate 2, and the mounting base 8 is equipped with more
A high pressure water water inlet interface 10, the connecting plate 2 are equipped with multiple high pressure water water outlet mouthpieces 11, each high pressure water water inlet interface 10
Collected by interior bone and be connected afterwards with the high pressure water at 5 center of rotary shaft convergence dispensing orifice 12, the connecting plate 2 is mounted on
In rotary shaft 5, each high pressure water water outlet mouthpiece 11 on connecting plate 2 passes through interior bone and radial through-hole and institute in rotary shaft
The high pressure water convergence dispensing orifice 12 stated is connected;The rotary shaft 5 is mounted on by thrust bearing 4 and angular contact ball bearing 6
In shell 3, shell 3 and the end face of mounting base 8 are fixedly linked, and are equipped with high pressure on one end that rotary shaft 5 is inserted into mounting base 8
Sealing ring 9, to guarantee that the high-pressure hydraulic after collecting in mounting base fully enters the high pressure water convergence dispensing orifice 12 of rotary shaft, really
Protecting will not leak at shell.
Multiple high pressure water water inlet interfaces 10 in the mounting base 8 are symmetrically distributed in mounting base 8 to guarantee that stress is flat
Weighing apparatus, the high pressure water water inlet interface 10 are connected by screw thread with high pressure water input adapter.
Multiple high pressure water water outlet mouthpieces 11 on the connecting plate 2 are symmetrically distributed on connecting plate 2, the high pressure water
Water outlet mouthpiece 11 is connected by screw thread with high pressure water out splice going splice.
The shell 3 in one end of mounting base 8, supporting pad 7 is installed in rotary shaft 5, one end of support heat 7 with
High-pressure seal ring 9 offsets to realize its positioning on the rotary shaft, and the outer ring of the other end and angular contact ball bearing 6 offsets, so as to
Realize the positioning of 6 side of angular contact ball bearing, the other side of angular contact ball bearing 6 is positioned by enclosure interior boss.
The connecting plate 2 is sleeved in rotary shaft 5 and passes through hex nut and is tightly located in rotary shaft 5.
Beneficial effects of the present invention:
The general power of super high power extra high voltage system of the invention reaches 640kW;Maximum pressure reaches 300MPa, and there is primary set up to press
Power, the interior pressure respectively pumped of group follow automatically;And have continuous adaptive pressure stabilizing control function, make a system key tune at work
It is fixed, the operation is stable;There are overvoltage protection, undervoltage warning, the safety protection functions such as unstability automatic shutdown protection in super-pressure pump system.
The structure that ultra-high pressure high flow rotary joint of the invention is gone out using multichannel into multichannel, maximum pressure reach 300MPa,
Flow reaches 150lpm, has the characteristics that small in size, structure is simple, high reliablity, meets big flow ultra-high pressure water fluid jet equipment
The conveying of mesohigh water needs.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of the ultra-high pressure high flow rotary joint of the embodiment of the present invention.
Fig. 3 is the structural schematic diagram of water outlet switching of the invention.Fig. 3 (a) is the main view of water outlet switching;Fig. 3 (b) is figure
B-B direction cross-sectional view 3(a), Fig. 3 (c) are the A direction view of Fig. 3 (a).
In figure: 32 be housing, and 33 be heat exchanger, and 34 be oily filter, and 35 be pallet, and 36 be bracket.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Figs. 1-3.
A kind of super high power extra high voltage system, it includes pedestal 21, and water tank 22, water pump 23 and control are equipped on pedestal 21
Electric cabinet 24, the water inlet of water pump are connected with the water outlet of water tank, and the water outlet of the water pump 23 divides multichannel (tetra- tunnel Fig. 1 Zhong Wei)
It is connected with the water inlet for each high-pressure pump 25 being mounted on pedestal 21, high-pressure pump 25 is driven by respective motor 26, each high pressure
The water outlet of pump 25 is sent into water outlet switching 28 by high-voltage tube 27 (as shown in figure 3, can also designed, designed system when specific implementation
Make), water outlet switching 28 every road output again by pressure duct high pressure water corresponding with ultra-high pressure high flow rotary joint 37 into
Water interface 10 is connected (as shown in Fig. 2, the quantity of high pressure water water inlet interface is also four).The total work of extra high voltage system of the invention
Rate is 640kW, and maximum pressure is up to 300MPa, and output pressure is adjustable, and the pressure of each high-pressure pump follows automatically.As shown in Figure 1,
The water outlet of the high-pressure pump 25 is equipped with shut-off valve 29, and before electric motor starting, shut-off valve is in the open state, high-pressure pump
Output water is discharged through shut-off valve, and when guaranteeing motor light-load starting, run well after electric motor starting, shut-off valve is closed, and enters
It is pressurized output state.In each motor 26, at least one motor is connected with frequency converter, and the high-pressure pump 25 being connected with the motor goes out
Water end (W.E.) is connected with pressure transmitter 30, and the revolving speed of motor is adjustable under the control of frequency converter, by adjusting motor revolving speed from
And achieve the purpose that adjust flow system flow, pressure;Pressure of the pressure transmitter for real-time detection high-pressure pump output water;Pressure becomes
The connected applications of device and frequency converter are sent to realize the control to system pressure: when the pressure of high-pressure system is lower than setting value, frequency conversion
Device, which controls motor speed, to be accelerated;When the pressure of high-pressure system is higher than setting value, Frequency Converter Control motor speed slows down, thus real
Now to the control of high-pressure system output water pressure.Each motor 26 is controlled by respective motor controlling cabinet 31.Such as Fig. 1 institute
Show.It can according to field condition voluntarily as motor 26 of the invention, high-pressure pump 25, the installation of motor controlling cabinet 31, configuration mode
It configures, each component is arranged in parallel in a straight line in Fig. 2, certainly, can also be arranged side by side, and in order to save space, is also installed additional in Fig. 1
Bracket 36 and pallet 35, for installing high-pressure pump.
In addition, when it is implemented, the ultra-high pressure high flow rotary joint 37 of one of critical component exported as system can
Self design can also be ordered directly from market, structure shown in Fig. 2, ultra-high pressure high flow shown in Fig. 2 also can be used
In rotary joint, it includes mounting base 8 and connecting plate 2, and the mounting base 8 is equipped with multiple high pressure water water inlet interfaces 10, institute
The connecting plate 2 stated be equipped with multiple high pressure water water outlet mouthpieces 11, each high pressure water water inlet interface 10 by interior bone collect after and
The high pressure water convergence dispensing orifice 12 at 5 center of rotary shaft is connected, and the connecting plate 2 is mounted in rotary shaft 5, on connecting plate 2
Each high pressure water water outlet mouthpiece 11 converge and distribute by radial through-hole in interior bone and rotary shaft and the high pressure water
Hole 12 is connected;The rotary shaft 5 is mounted in shell 3 by thrust bearing 4 and angular contact ball bearing 6, shell 3 and installation
The end face of seat 8 is fixedly linked, and is equipped with high-pressure seal ring 9 on one end that rotary shaft 5 is inserted into mounting base 8, to guarantee from peace
High-pressure hydraulic after collecting in dress seat fully enters the high pressure water convergence dispensing orifice 12 of rotary shaft, it is ensured that will not leak at shell.
Multiple high pressure water water inlet interfaces 10 in the mounting base 8 are symmetrically distributed in guarantee stress balance in mounting base 3, described
High pressure water water inlet interface 10 is connected by screw thread with high pressure water input adapter.Multiple high pressure waters water outlet on the connecting plate 2
Interface 11 is symmetrically distributed on connecting plate 2, and the high pressure water water outlet mouthpiece 11 is connected by screw thread with high pressure water out splice going splice.
The shell 3 in one end of mounting base 8, supporting pad 7 is installed in rotary shaft 5, one end of support heat 7 and high pressure sealing
Circle 9 offsets to realize its positioning on the rotary shaft, and the outer ring of the other end and angular contact ball bearing 6 offsets, to realize corner connection
The positioning of 6 side of ball bearing is touched, the other side of angular contact ball bearing 6 is positioned by enclosure interior boss.The connecting plate 2 is set with
In rotary shaft 5 and passes through hex nut and be tightly located in rotary shaft 5.
The working principle of super high power high-pressure system and ultra-high pressure high flow rotary joint of the invention is as follows:
Super high power extra high voltage system is mainly turned by pedestal, motor, high-pressure pump, shut-off valve, pressure transmitter, high-voltage tube, water outlet
It connects, the part such as water tank, water pump and electric cabinet forms.Water in water tank is delivered to the water inlet end of high-pressure pump, motor after water pump pressurizes
High-pressure pump rotation is driven, the high pressure water through high-pressure pump pressurization is exported from the water outlet of high-pressure pump, at high-voltage tube to water outlet switching;
Shut-off valve is installed in parallel in the water outlet of high-pressure pump, and before electric motor starting, shut-off valve is in the open state, the output water of high-pressure pump
It is discharged through shut-off valve, when guaranteeing motor light-load starting, run well after electric motor starting, shut-off valve is closed;The four of diagram
In group high pressure pump motor group, wherein a set of motor is connect with frequency converter, the revolving speed of motor is adjustable under the control of frequency converter,
By adjusting the revolving speed of motor to achieve the purpose that adjust flow system flow, pressure;Pressure transmitter is also installed in parallel in high pressure
The water outlet of pump, the pressure for real-time detection high-pressure pump output water;The realization pair of the connected applications of pressure transmitter and frequency converter
The control of system pressure: when the pressure of high-pressure system is lower than setting value, Frequency Converter Control motor speed is accelerated;Work as high-pressure system
Pressure be higher than setting value when, Frequency Converter Control motor speed slows down, thus realize to high-pressure system output water pressure control.
(with existing compared with overflow valve adjusts by the way of output water pressure, output hydraulic pressure is adjusted using Frequency Converter Control motor speed
The extra high voltage system of power eliminates high-pressure overflow valve, avoids high pressure water overflow phenomena, can save the consumption of electric energy, subtract simultaneously
Downtime vulnerable part consumption caused by few high-pressure overflow valve and generated because replacing high-pressure overflow valve vulnerable part).
The mounting base 8 of ultra-high pressure high flow rotary joint is the input terminal of multichannel high pressure water, on the circumference of its large cylindrical
Multiple internal thread holes are distributed, for installing intake line connector (i.e. high pressure water input adapter);Mounting base 8 is by screw (in figure
Do not indicate) it is fixedly mounted on shell 3;5 center of rotary shaft is a cylindrical hole, and thrust bearing 4 and angular contact ball bearing 6 are sleeved on
In the outer circle of rotary shaft 5;Thrust bearing 4 and angular contact ball bearing 6 are mounted in the inner hole of shell 3;Connecting plate 2 is multichannel high pressure
The output end of water is also distributed multiple internal thread holes on the circumference of outer circle, and for installing output pipe connector, (i.e. high pressure water is exported
Connector);The inner hole sleeve of connecting plate 2 is fixed in the outer circle in 5 left side of rotary shaft, and with hex nut 1.High-pressure seal ring 9
Inner hole sleeve mounted in rotary shaft 5 right end outer circle on, outer circle be sleeved on mounting base 8 left end inner hole middle high-pressure sealing ring 9 left end
It offsets with supporting pad 7;Supporting pad 7 is mounted in the right end inner hole of shell 3, and left end offsets with angular contact ball bearing 7.
High pressure water is entered in the hole that mounting base 8 is connected to internal thread hole by inputting pressure duct, and is collected to and is located at peace
In the hole for filling 8 center of seat, then entered in the hole for being secured to the connecting plate 2 of connection by the centre bore of rotary shaft 5, is finally entered
It is mounted in the output pipe on 2 internal thread hole of connecting plate.When rotating torque acts on connecting plate 2, connecting plate 2 drives rotation
Shaft 5 rotates together, realizes the relative rotation of output end and input terminal in high pressure water conveying.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (10)
1. a kind of super high power extra high voltage system, it includes pedestal (21), and water tank (22), water pump (23) are equipped on pedestal (21)
With control electric cabinet (24), the water inlet of water pump is connected with the water outlet of water tank, it is characterized in that the water outlet of the water pump (23)
Point multichannel is connected with the water inlet for each high-pressure pump (25) being mounted on pedestal (21), and high-pressure pump (25) is by respective motor
(26) it drives, the water outlet of each high-pressure pump (25) is sent into water outlet switching (28) by high-voltage tube (27), and water outlet switching (28) is again
It is connected by pressure duct with the high pressure water water inlet interface (10) of ultra-high pressure high flow rotary joint (37).
2. super high power extra high voltage system according to claim 1, it is characterized in that the quantity of the high-pressure pump (25) is
Four, general power 640kW, maximum pressure reaches 300MPa, and output pressure is adjustable, and the pressure of each high-pressure pump follows automatically.
3. super high power extra high voltage system according to claim 1, it is characterized in that the water outlet of the high-pressure pump (25)
Shut-off valve (29) are installed, before electric motor starting, shut-off valve is in the open state, and the output water of high-pressure pump is discharged through shut-off valve,
When guaranteeing motor light-load starting, run well after electric motor starting, shut-off valve is closed, into pressurization output state.
4. super high power extra high voltage system according to claim 1, it is characterized in that in each motor (26), at least
One motor is connected with frequency converter, and the water outlet for the high-pressure pump (25) being connected with the motor is connected with pressure transmitter (30),
The revolving speed of motor is adjustable under the control of frequency converter, by adjusting the revolving speed of motor to reach adjustment flow system flow, pressure
Purpose;Pressure of the pressure transmitter for real-time detection high-pressure pump output water;The connected applications of pressure transmitter and frequency converter are real
Now to the control of system pressure: when the pressure of high-pressure system is lower than setting value, Frequency Converter Control motor speed is accelerated;Work as high pressure
When the pressure of system is higher than setting value, Frequency Converter Control motor speed slows down, to realize to high-pressure system output water pressure
Control.
5. super high power extra high voltage system according to claim 1, it is characterized in that each motor (26) is controlled by
Respective motor controlling cabinet (31).
6. super high power extra high voltage system according to claim 1, it is characterized in that the ultra-high pressure high flow rotation connects
Head (37) includes mounting base (8) and connecting plate (2), and the mounting base (8) is equipped with multiple high pressure water water inlet interfaces (10), institute
The connecting plate (2) stated is equipped with multiple high pressure water water outlet mouthpieces (11), and each high pressure water water inlet interface (10) is converged by interior bone
It is connected after collection with the high pressure water at rotary shaft (5) center convergence dispensing orifice (12), the connecting plate (2) is mounted on rotary shaft
(5) on, each high pressure water water outlet mouthpiece (11) on connecting plate (2) passes through interior bone and radial through-hole and institute in rotary shaft
High pressure water convergence dispensing orifice (12) stated is connected;The rotary shaft (5) passes through thrust bearing (4) and angular contact ball bearing
(6) it is mounted in shell (3), shell (3) and the end face of mounting base (8) are fixedly linked, and are inserted into mounting base (8) in rotary shaft (5)
In one end on high-pressure seal ring (9) are installed, to guarantee that high-pressure hydraulic after collecting in mounting base fully enters rotary shaft
High pressure water converge dispensing orifice (12), it is ensured that will not leak at shell.
7. super high power extra high voltage system according to claim 6, it is characterized in that multiple high in the mounting base (8)
Pressure water water inlet interface (10) is symmetrically distributed on mounting base (8) to guarantee stress balance, the high pressure water water inlet interface (10)
It is connected by screw thread with high pressure water input adapter.
8. super high power extra high voltage system according to claim 6, it is characterized in that on the connecting plate (2) and multiple high
Pressure water water outlet mouthpiece (11) is symmetrically distributed on connecting plate (2), and the high pressure water water outlet mouthpiece (11) passes through screw thread and high pressure
Water out splice going splice is connected.
9. super high power extra high voltage system according to claim 6, it is characterized in that the shell (3) is close to mounting base
(8) in one end, supporting pad (7) are installed in rotary shaft (5), the one end of hot (7) and high-pressure seal ring (9) is supported to offset with reality
Show its positioning on the rotary shaft, the other end and the outer ring of angular contact ball bearing (6) offset, to realize angular contact ball bearing
(6) other side of the positioning of side, angular contact ball bearing (6) is positioned by enclosure interior boss.
10. super high power extra high voltage system according to claim 6, it is characterized in that the connecting plate (2) is sleeved on rotation
In shaft (5) and passes through hex nut and be tightly located on rotary shaft (5).
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CN201910349308.XA CN110000929A (en) | 2019-04-28 | 2019-04-28 | A kind of super high power extra high voltage system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110497534A (en) * | 2019-08-31 | 2019-11-26 | 中铁工程装备集团有限公司 | A kind of ultra-high pressure water fluid jet auxiliary rock rotary joint |
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CN108480269A (en) * | 2018-02-26 | 2018-09-04 | 合肥通用机械研究院有限公司 | A kind of multifunctional high pressure water jet flusher |
CN108756923A (en) * | 2018-06-29 | 2018-11-06 | 中铁工程装备集团有限公司 | A kind of development machine using high pressure water broken rock |
CN210161425U (en) * | 2019-04-28 | 2020-03-20 | 南京大地水刀股份有限公司 | Ultrahigh-power ultrahigh-pressure system |
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CN110497534A (en) * | 2019-08-31 | 2019-11-26 | 中铁工程装备集团有限公司 | A kind of ultra-high pressure water fluid jet auxiliary rock rotary joint |
CN110497534B (en) * | 2019-08-31 | 2022-02-08 | 中铁工程装备集团有限公司 | Rotary joint for ultrahigh-pressure water jet auxiliary rock breaking |
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